linux-kernel - [PATCH 4/5] mm/lru: is_file/active

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Date:	Wed, 23 Mar 2016 10:26:08 +0800
From:	Yaowei Bai <baiyaowei@...s.chinamobile.com>
To:	akpm@...ux-foundation.org
Cc:	n-horiguchi@...jp.nec.com, kirill.shutemov@...ux.intel.com,
	rientjes@...gle.com, iamjoonsoo.kim@....com, hannes@...xchg.org,
	vdavydov@...tuozzo.com, kuleshovmail@...il.com, vbabka@...e.cz,
	mgorman@...hsingularity.net, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, baiyaowei@...s.chinamobile.com
Subject: [PATCH 4/5] mm/lru: is_file/active_lru can be boolean

This patch makes is_file/active_lru return bool to improve
readability due to these particular functions only using either
one or zero as their return value.

No functional change.

Signed-off-by: Yaowei Bai <baiyaowei@...s.chinamobile.com>
---
 include/linux/mmzone.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 6de02ac3..652d60e 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -188,12 +188,12 @@ enum lru_list {
 
 #define for_each_evictable_lru(lru) for (lru = 0; lru <= LRU_ACTIVE_FILE; lru++)
 
-static inline int is_file_lru(enum lru_list lru)
+static inline bool is_file_lru(enum lru_list lru)
 {
 	return (lru == LRU_INACTIVE_FILE || lru == LRU_ACTIVE_FILE);
 }
 
-static inline int is_active_lru(enum lru_list lru)
+static inline bool is_active_lru(enum lru_list lru)
 {
 	return (lru == LRU_ACTIVE_ANON || lru == LRU_ACTIVE_FILE);
 }
-- 
1.9.1